ASN Wikibase Occurrence # 291926
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Date: | Friday 11 August 2006 |
Time: | 10:30 LT |
Type: | Ayres S2R-T34 |
Owner/operator: | Mcginty Flying Service Inc |
Registration: | N444HF |
MSN: | T36-191 |
Year of manufacture: | 1992 |
Total airframe hrs: | 8409 hours |
Engine model: | Pratt & Whitney PT6A-36 |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Parkdale, Arkansas -
United States of America
|
Phase: | Unknown |
Nature: | Agricultural |
Departure airport: | Parkdale, AR |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:The 6,000-hour commercial pilot made a forced landing to a cotton field after the turbine engine installed on his agricultural airplane stopped producing power. The pilot landed in a field and subsequently collided with trees. An inspector with the Federal Aviation Administration performed an on-scene examination of the airplane. According to the inspector, the airplane sustained structural damage to the wings. Examination of the engine revealed a compressor-turbine blade had failed causing extensive damage to the vein ring, segments and small exit duct. This failure also resulted in debris contacting the power-turbine blades, which subsequently damaged all of the power-turbine blades and disc. The failed blade was never located and the mode of failure could not be determined. A review of the airplane's maintenance history revealed that the compressor-turbine disc was rebladed in November 1994, and had accumulated approximately 4,987.7 hours since new. The disc itself had accumulated approximately 7,941.4 hours and 7,170 cycles.
Probable Cause: The failure of a compressor turbine blade for undetermined reasons, which resulted in a total loss of engine power. A contributing factor was the lack of suitable terrain for the forced landing.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | DFW06LA198 |
Status: | Investigation completed |
Duration: | 5 months |
Download report: | Final report |
|
Sources:
NTSB DFW06LA198
Revision history:
Date/time | Contributor | Updates |
08-Oct-2022 06:53 |
ASN Update Bot |
Added |
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